Optimization of irrigation and nitrogen for sustainable rice cultivation: emissions and yield impact

S Ashwini; N Sakthivel; S Pazhanivelan; K Ramah; P Janaki; V Ravichandran

doi:10.14719/pst.6078

Authors

Ashwini S Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India https://orcid.org/0000-0001-5278-5047
Sakthivel N Department of Agronomy, Agricultural Research Station, Tamil Nadu Agricultural University, Bhavanisagar 638 451, Tamil Nadu, India https://orcid.org/0009-0005-8248-3812
Pazhanivelan S Water Technology Centre, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India https://orcid.org/0000-0002-3596-3232
Ramah K Department of Agronomy, Agricultural Research Station, Tamil Nadu Agricultural University, Bhavanisagar 638 451, Tamil Nadu, India https://orcid.org/0000-0001-9515-0244
Janaki P Nammazhvar Organic Farming Research Centre, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India https://orcid.org/0000-0002-3918-4519
Ravichandran V Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India https://orcid.org/0000-0002-6447-6417

DOI:

https://doi.org/10.14719/pst.6078

Keywords:

AWD, grain yield, greenhouse gas mitigation, methane emissions, MSRI, nitrous oxide emissions, sustainable irrigation practices

Abstract

Rice cultivation is integral to global food security and exports but contributes significantly to greenhouse gas emissions, mainly methane (CH?) and nitrous oxide (N?O), exacerbating climate change. This study evaluates the effects of three irrigation practices-conventional flooding (CF), alternate wetting and drying (AWD) and the modified system of rice intensification (MSRI) on CH? and N?O emissions and rice yields over two seasons (Kar 2022 and Samba 2023). A split-plot design with five nitrogen management strategies was employed, with weekly gas sampling and yield measurements at harvest. Among the treatments, the MSRI method, combined with 75% of the recommended nitrogen dose and a 0.4% foliar nano-urea spray (M3S5), recorded the lowest CH? emissions at 50-60 mg CH?/m²/day, compared to 120-130 mg CH?/m²/day under CF. In contrast, N?O emissions under MSRI peaked at 11-13 µg N?O/m²/day, higher than CF (5-7 µg N?O/m²/day). MSRI also achieved the highest rice yields, averaging 6029 kg/ha in Kar 2022 and 6018 kg/ha in Samba 2023, compared to 5500-5700 kg/ha under AWD. These findings highlight the potential of MSRI with optimized nitrogen management as a sustainable alternative, balancing high productivity with reduced CH? emissions and offering a pathway for climate-resilient rice farming.

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References

Islam SF, de Neergaard A, Sander BO, Jensen LS, Wassmann R, van Groenigen JW. Reducing greenhouse gas emissions and grain arsenic and lead levels without compromising yield in organically produced rice. Agric Ecosyst Environ. 2020;295:106922. https://doi.org/10.1016/j.agee.2020.106922

Arunrat N, Sereenonchai S, Pumijumnong N. On-farm evaluation of the potential use of greenhouse gas mitigation techniques for rice cultivation: a case study in Thailand. Climate. 2018;6(2):36. https://doi.org/10.3390/cli6020036

Smartt AD, Brye KR, Rogers CW, Norman RJ, Gbur EE, Hardke JT, Roberts TL. Previous crop and cultivar effects on methane emissions from drill seeded, delayed flood rice grown on a clay soil. Appl Environ Soil Sci. 2016;2016:9542361. https://doi.org/10.1155/2016/9542361

Smith P, Bustamante M, Ahammad H, Clark H, Dong H, Elsiddig EA, et al. Agriculture, forestry and other land use (AFOLU). In: Edenhofer O, et al., editors. Climate change 2014: mitigation of climate change. contribution of working group iii to the fifth assessment report of the intergovernmental panel on climate change. Cambridge: Cambridge University Press; 2014. p. 811-922.

Ku HH, Hayashi K, Agbisit R, Villegas-Pangga G. Evaluation of fertilizer and water management effect on rice performance and greenhouse gas intensity in different seasonal weather of tropical climate. Sci Tot Environ. 2017;601:1254-62. https://doi.org/10.1016/j.scitotenv.2017.05.277

Li J, Wan Y, Wang B, Waqas MA, Cai W, Guo C, et al. Combination of M nitrogen fertilizers and water saving irrigation can reduce greenhouse gas emissions and increase rice yield. Geoderma. 2018;315:1-10. https://doi.org/10.1016/j.geoderma.2017.11.033

Ramesh T, Rathika S. Evaluation of rice cultivation systems for greenhouse gases emission and productivity. Int J Ecol Environ Sci. 2020;2:49-54.

Sander BO, Schneider P, Romasanta R, SamoyPK, Sibayan EB, Asis CA, Wassmann R. Potential of alternate wetting and drying irrigation practices for the mitigation of GHG emissions from rice fields: two cases in Central Luzon (Philippines). Agriculture. 2020 ;10(8):350. https://doi.org/10.3390/agriculture10080350

Win EP, Win KK, Bellingrath?Kimura SD, Oo AZ. Greenhouse gas emissions, grain yield and water productivity: a paddy rice field case study based in Myanmar. Greenhouse Gases: Sci Tech. 2020;10(5):884-97. https://doi.org/10.1002/ghg.2011.

Katambara Z, Kahimba FC, Mahoo HF, Mbungu WB, Mhenga F, Reuben P, Maugo M, Nyarubamba A. Adopting the system of rice intensification (SRI) in Tanzania: A review. Agric Sci. 2013;2013.

Boateng KK, Obeng GY, Mensah E. Agricultural greenhouse gases from sub-Saharan Africa. In: Shurpali N, Agarwal A, Srivastava V, editors. Greenhouse gas emissions. energy, environment, and sustainability. Springer:Singapore; 2019. p. 73-85. https://doi.org/10.1007/978-981-13-3272-2_6

Singh Y, Singh B, Ladha JK. Management of nitrogen fertilizers in rice production: Balancing productivity with environmental concerns. Advances in Agronomy. 2015;127:203-86.

Sharma L, Rajput VD, Tripathi DK, Singh S, Fraceto LF, Singh VP. Nanourea: A revolutionary technology for enhancing nitrogen use efficiency and reducing nitrogen losses in agriculture. Environ Chem Lett. 2019;17:1447-61.

Yoshida S. Fundamentals of rice crop science. Los Baños, Philippines:International Rice Research Institute (IRRI). 1981.

Smith KA, Ball T, Conen F, Dobbie KE, Massheder J, Rey A. Exchange of greenhouse gases between soil and atmosphere: interactions of soil physical factors and biological processes. Euro J Soil Sci. 1995;46(3):239-49.

Hsu J. Multiple comparisons: theory and methods. Newyork:Chapman and Hall/CRC; 1996. https://doi.org/10.1201/b15074

Jolliffe IT. Principal component analysis for special types of data. New York:Springer; 2002.

Montgomery DC, Peck EA, Vining GG. Introduction to linear regression analysis. New York: John Wiley & Sons; 2021.

Makridakis S, Wheelwright SC, Hyndman RJ. Forecasting methods and applications. John New York: Wiley& sons; 2008.

Zou, J., Huang, Y., & Zheng, X. Greenhouse gas emissions from rice-wheat rotation fields with different water and nitrogen management practices. Agric Ecosys Environ. 2014;188: 119-28.

Jiang Y, Wu H, Zhang Y. Mitigating methane emissions in rice paddies: A review of water-saving irrigation and organic amendments. J Environ Manage. 2019;240:116-23.

Gaihre YK, Singh U, Islam S, Huda A, Islam MR, Sanabria J, et al. Nitrous oxide and methane emissions from lowland rice cultivation with urea deep placement and alternate wetting and drying irrigation. Sci Rep. 2020;10(1):7938.

Zhang Y, Wu J, Zheng X. Impact of integrated nitrogen management on greenhouse gas emissions and nitrogen use efficiency in rice paddies. J Environ Qual. 2022;51(3):452-61.

Sander BO, Samson M, Buresh RJ. Methane mitigation options in irrigated rice fields: A review. Environ Sci Pol. 2015;49:136-44.

Linquist BA, Van Groenigen KJ, Van Kessel C. Methane emissions and reductions in alternate wetting and drying systems in rice. Field Crops Res. 2015;180:49-56.

Shcherbak I, Millar N, Robertson GP. Global meta-analysis of the nonlinear response of soil nitrous oxide (N?O) emissions to fertilizer nitrogen. Proceed Nat Acad Scie. 2014;111(25):9199-9204. https://doi.org/10.1073/pnas.1322434111

Butterbach-Bahl K, Baggs EM, Dannenmann M, Kiese R, Zechmeister-Boltenstern S. Nitrous oxide emissions from soils: how well do we understand the processes and their controls? Philos Trans R Soc Lond B Biol Sci. 2013;368(1621):20130122. https://doi.org/10.1098/rstb.2013.0122

Singh Y, Singh B, Ladha JK, Gupta R. Neem-coated urea improves nitrogen use efficiency, reduces N?O emissions, and increases rice yields. Nutr Cycl Agroeco. 2015;103(2):193-210.

Rajput P, Agrawal RC, Yadav P, Gautam A. Role of nano-urea for increasing nitrogen use efficiency in rice production. Agric Rev. 2020;41(4):293-7.

Sharma SK, Kumar A, Singh B. Foliar application of nano urea: A sustainable solution for increasing nitrogen use efficiency. J Plant Nutr. 2022;45(2):520-33.

. Cai Z, Zhu Z, Xu H. Optimizing irrigation and fertilization for low-emission rice production. Field Crops Res. 2019;231:90-101.

Islam SF, Sander BO, Quilty JR, De Neergaard A, Van Groenigen JW, Jensen LS. Mitigation of greenhouse gas emissions and reduced irrigation water use in rice production through water-saving irrigation scheduling, reduced tillage and fertiliser application strategies. Sci Tot Environ. 2020;739:140215. https://doi.org/10.1016/j.scitotenv.2020.140215

Peng S, Bouman BAM, Visperas RM, Castaneda A, Nie L, Park HK. Yield and water productivity of the system of rice intensification)) compared with standard management practices in Asia. Field Crops Res. 2019;157:43-52.

Feng J, Chen C, Zhang Y, Yang Y. Response of methane and nitrous oxide emissions to water-saving practices and nitrogen fertilizer in rice paddies: A meta-analysis. Agric Ecosys Environ. 2017;237:214-28.

Xu Y, Ge J, Tian S, Li S, Nguy-Robertson AL, Zhan M, et al. Effects of water-saving irrigation practices and drought resistant rice variety on greenhouse gas emissions from a no-till paddy in the central lowlands of China. Sci Tot Environ. 2015;505:1043-52. https://doi.org/10.1016/j.scitotenv.2014.10.073

Pittelkow CM, Adviento-Borbe MAA, Hill JE, Van Kessel C, Linquist BA. Greenhouse gas mitigation options in irrigated rice systems: A review. Ecosys Environ. 2015;206:33-45.

Sharma SK, Kumar A, Singh B. Foliar application of nano urea: A sustainable solution for increasing nitrogen use efficiency. J Plant Nutr. 2022;45(2), 520-33.|